Prince Louis' 1st birthday: see the Queen, Prince William and other royals aged one

April is an exciting month for the royal family. Not only could we see the arrival of the Duke and Duchess of Sussex's first child, but Prince Louis celebrates his first birthday on 23 April. As the third child of the Duke and Duchess of Cambridge, Louis is fifth-in-line to the throne, following his siblings Prince George, five, and Charlotte, three.

A spokesperson for Kensington Palace revealed to HELLO! that the family will spend the day privately, celebrating Louis' first birthday with the people that matter most. We can expect to see an official first birthday portrait released by the palace to commemorate the big day. Scroll through to see what the rest of the royals looked like when they were Louis' age...

Prince George

It feels like only yesterday that Prince George was learning how to walk!

Peter Phillips

Prince Andrew

Born in 1960, Prince Andrew was the first royal born to a monarch since 1837, after his mother the Queen took to the throne in 1953. Attending the annual Trooping the Colour ceremony in 1961, Andrew made his public debut at 16 months old.

Isla Phillips

The youngest daughter of Peter and Autumn Phillips, Isla celebrated her seventh birthday on 29 May. When she was just one, the royal was often spotted out at events with her parents, looking cute here (left) in a woollen hat alongside sister Savannah.

Prince Charles

Prince Edward

As a one year old, Prince Edward loved playing with his older brother Prince Andrew. With only four years between them, the pair were closer than they were with their older siblings, with Princess Anne being born 14 years before Edward.

Princess Anne

The only daughter of the Queen, Princess Anne is seen here as an adorable baby spending some time with her grandparents, King George and the Queen Mother, as well as her three-year-old brother Charles.